In my personal opinion art is a little easier than science since im more on the creative side :)
Assuming this is in 3/4 time, I would count it like this (each dash is a silent 16th note)
1- - - a 2- - - - - - - -
Answer:
Mnemonic devices help learning easier by coming up with some "nonsense" phrases like:
Please P Parenthesis
Excuse E Exponents
My M Multiplication
Dear D Division
Aunt A Addition
Sally S Subtraction
(Just an example)
Some might be more effective than others because they ae easier to remember.
It depends on which type of leaf, but I'll try to show you a simple one. I found this picture, I hope it's useful.
shellac is commonly used in nail salons, it's a different kind of coating that lasts longer than than regularly used nail polish. but to answer your question, my guess would be printmaking because they do use shellac and i know for a fact that they use glue. hope i helped :)